REVIEW ON STEGANOGRAPHY FOR HIDING DATA?

Steganography is the science of hiding the fact that communication is taking place, by hiding information behind information. Many different carrier file formats can be used, but digital media are the most popular because of their usage on the Internet. For hiding secret information in digital media, there exists a large variety of steganography techniques some are more complex than others and all of them have some advantages and disadvantage. Various applications have different requirements of the steganography technique used. For example, some applications may require absolute invisibility of the secret data, while others require a larger secret data to be hidden. This paper intends to give an overview of Digital media steganography, its uses and techniques. It also attempts to identify the requirements of a good steganography algorithm and briefly reflects on which stenographic techniques are more suitable for which applications.